file must be named glyphs.bmp, option "High colour images" in "Options | Preferences" must be turned ON and program must be restarted for detecting glyphs file.
High color images! Of course! Thanks - that was it.
________________________________________________ Current version is 2.10.03 | 'Using TBUDL' information: http://www.silverstones.com/thebat/TBUDLInfo.html

